Question on Vonage

I took a quick view at their homepage, after my uncle was thinking about signing up, and I saw their 'Soft Phone' option. Now, does this come with a skype like program that allows you to talk through the computer like you would on a normal phone? I'm looking for something that I can easily record Talent Interviews with for my website, and the good thing about this service is that the minutes don't expire like they do with skype..